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Hydraulische Stellsystem
Speziell für den jeweiligen Anwendungsfall ausgelegte
Systeme
für alle Ansprüche der Regelungs- und Steuertechnik.
Gleichzeitige Betätigung mehrerer, voneinander unabhängiger
Stellzylinder durch ein gemeinsames Hydrauliksystem.
Stellkräfte bis 2.000.000 N
Stellmomente bis 700.000 Nm
Hydraulic Actuator System
In compliance with customers specifications and
international
standards designed systems for all requirements of control
applications.
Simultaneous actuating of several, independent control
cylinders with one hydraulic system.
Linear actuator force up to 2.000.000 N
Rotary actuator torques up to 700.000 Nm
• Stetige Regelung mit Servoventilen / Proportionalventilen
• Schrittsteuerung und Auf-Zu-Funktion
• TÜV-lgeprüfte Sicherheitsventilsteuerungen gemäß TRD 421
mit Dreifach-Druckmeßeinrichtung (Dampfprüfstock - DESY
3)
• Mögliches Verhalten bei Energieausfall:
- Verblocken in der letzten Regelstellung
- Endstellung anfahren durch Hydrospeicher oder durch
Federkraft
- Speicherdimensionierung für mehrere “Nothübe“
• Redundante Motor-Pumpen-Aggregate mit automatischer
Umschaltung
• Interne Steuerung, Überwachung und Signalaustausch mit
Leittechnik über speicherprogrammierbare Steuerung (SPS)
• Möglichkeit zur Einbindung in BUS-Systeme
• Klartextanzeige der Betriebzustände, Siglnalisierungen und
Störmendungen, Bedienfelder
• Ausführung für den Einsatz in explosionsgefährdeten
Bereichen
• Ausführung für den Betrieb mit Mineralöl oder mit
schwerentflammbarer Hydraulikflüssigkeit, z.B. HFD-R.
• Aufstellung und Rohrleitungsmontage
• Verlegung der elektrischen Verbindungsleitungen
• Inbetriebnahme
• Service
• Analogous position control with servo-valves /
proportional valves
• Step control or open-close function
• Safety-control devices with tripple pressure test units
according to german “Technical Standards for Steam
Boilers“ TRD 421, with type-test certificate of the german
TÜV
• Possible functions for failsafe position in case of
electric
power supply failure:
- Blocking in the last control position
- Moving to position open or close by using hydraulic
accumulators or with spring force
– accumulators for serveral emergency strokes
• Double motor-pump-units with automatic change over
• Internal control, monitoring and transfer of signals to
the
main control room with programmable controller (PLC)
• Connection to BUS-systems possible
• Text display or local control panel for indication of
operating
modes, signalisations and alarms
• Special designs for operation in explosive atmospheres
• Design for mineral oil or for fire resistant hydraulic
fluid,
e.g. HFD-R.
• IInstallation of the hydraulic unit and of the
interconnecting
pipe
• Installation of inter connecting cables
• Commissioning
• Service
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file: SM_e Edition 05/2010 page: 1
HYDRAULIC POWER UNITS
ELECTRO-HYDRAULIC POWER UNITS
ContentContent
.......................................................................................................................................
11 General information
...........................................................................................................
22 Electro-hydraulic powers unit for valve applications
........................................................ 2
2.1 Reineke
Standard............................................................................................................
22.2 Options
...........................................................................................................................
32.3 Accessory
.......................................................................................................................
3
3 Elektro-hydraulic power unit for diverter
dampers............................................................
43.1 Reineke
Standard............................................................................................................
43.2 Options
...........................................................................................................................
43.3 Accessory
.......................................................................................................................
5
4 Inquiry data
questionnaire..................................................................................................
6
REINEKE MESS - UND REGELTECHNIK GMBHVon-Ebner-Eschenbach-Str. 5,
D-44807 Bochum, Germany
Phone +49 (0)234 9595-0, Fax +49 (0)234 9595-200E-mail:
[email protected] / Internet: www.reineke-online.com
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HYDRAULIC POWER UNITS
1 General informationToday’s plants are running longer, at
higher outputs, and under more sophisticated plantautomation
systems than ever before. Furthermore the efficiency and
availability will beincreased steady. And it all radically
increases the performance demand especially on yourcontrol valves
and its actuators or actuator systems.
2 Electro-hydraulic powers unit for valve applicationsThe
electr-hydraulic power units (HPU) were used as oil supply units,
which are connectedvia an external piping system to several
hydraulic cylinders to actuate the adapted valves ofseveral valve
groups.These HPU can be equiped with a PLC control system (so
called „black box“) which coversall internal hydraulic functions
and generates the signal exchange to the local control system(DCS).
The control elements like hydraulic proportional valves are
attached directly to thehydraulic cylinder, so that the piping
system can be executed with one feeding line and onereturn line for
several parallel connected valves. These kind of HPU with special
actuatortechnology were used for the actuation of main steam valves
as well as bypass valves in steamturbines.
2.1 Reineke StandardThe features of the HPU listet below
document the so called „Reineke-Standard“, which wascreated over
the years, based on our comprehensive experience and partnership
developmentswith leading power plant enginering companies:
- oil tank with filling connection, drain valve, maintenance
cover, air venting filter,visual oil level gauge, oil dip tray
(=> intake ot the complete oil volume)
- 2 motor pump units (flow rate 100% each pump)- pressure filter
unit with clogging indicator and bypass- pressure relief valve for
the system protection- bladder accumulator unit with safety block
(TÜV approved!)- 1 pressure transmitter- 1 temperature transmitter
for the system protection- 1 level switch (2 contacts) for the
system protection- terminal box with strip- 1 mobile pressure test
device with pressure gauge and coupling for checking
of the oil pressure at different measuring points.
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HYDRAULIC POWER UNITS
2.2 OptionsPer example some additional items are named out of
the great variety of options as follows:
- PLC control for the complete hydraulic power unit(motor /
pressure control unit with pressure transmitter indication)
inclusive signal exchange for warning and alarm status indication
MOD BUS interface
- regeneration unit for fire resistant hydraulic fluid- piston
type accumulator unit- oil-cooling / heating systems- complete
housing of the HPU for outdoor placement- returnline filter unit
(in single or double execution)- redundant pressure filter unit-
redundant sensoric equipment of the HPU- hydraulic cylinders with
safety release units (single / triple) in accordance to the
German
TRD 421 regulations (with certificate) or according to customers
specification
Note: To solve a special application problem we serve your needs
with a smart andcustomized solution!
2.3 AccessoryThe steam pressure monitoring device is a TÜV
approved and certified system for thedetection of over pressure in
boiler steam lines. The safety valve control corresponds with
theGerman „Technical Regulations for Steam Boilers TRD 421“.
Three pressure transmitters are installed on a basic frame. The
pressure transmitters are singlyconnected to the to be protected
pipe line system over protruding pipe mountings. A lockingdevice
(one key for three identical locks) allows for the shut-off of one
pressure measuringline. Two lines always remain open. This makes
the checking of every single pressuretransmitter as well as a
function check of the electronic pressure measuring system
DESY-3and of the entire safety unit during the standard procedure
of the plant possible. For the dirtprotection the complete
equipment is installed in a housing box with front door. For
moredetailed information refer to extra catalogue!
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HYDRAULIC POWER UNITS
3 Elektro-hydraulic power unit for diverter dampersThe
electro-hydraulic power units (HPU) were used as oil supply units,
which are connectedvia an external piping system onto the hydraulic
cylinders, which positioning the blade of adiverter damper system.
These systems were used in combined cycle power plants to
transferthe exhaust stream of the gas turbine into the boiler
(HRSG) or even in the bypass stack, byactuating the diverter
blade.The HPU can be equiped with a PLC control system (so called
„black box“) which covers allinternal hydraulic functions and
generates the signal exchange to the local control system(DCS).
Additionally the diverter instrumentation can be controlled within
the HPU controlsystem, including the signal exchange as well. As
per control operation mode the step control,which is preferly used,
or continuous control can be selected as well as the type of
inputsignal like the 4-20mA signal.
3.1 Reineke StandardFor the special plant requirements Reineke
has developed a concept, that enclose thefollowing design details
and define this features as our standard:
- oil tank with filling connection, drain valve, maintenance
cover, air venting filter,visual oil level gauge, oil dip tray
(=> intake ot the complete oil volume)
- 2 motor pump units (flow rate 100% each pump)- pressure filter
unit with clogging indicator and bypass- pressure relief valve for
the system protection- bladder accumulator unit with safety block
(TÜV approaved!)- 1 pressure transmitter- 1 temperature transmitter
for the system protection- 1 level switch (2 contacts) for the
system protection- PLC control for the complete hydraulic power
unit (motor / pressure control unit)
inclusive signal exchange for warning and alarm status
indication, MOD BUS interface- 1 mobile pressure test device with
pressure gauge and coupling for checking
of the oil pressure at different measuring points.
3.2 OptionsAs per option we provide following features (refer
even to point 2.2):
- local control (via panel at the electric cabinet, mobilisation
via key switch)- redundant PLC control („Hot Standby“)- oil-cooling
/ heating systems- complete housing of the HPU for outdoor
placement
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HYDRAULIC POWER UNITS
Example for a local control panel:
3.3 AccessorySome of the great variety of accessories, which we
recommend are mentioned below:
- accumulator test and filling device for bladder type
accumulators- electric filling pump for charging the unit at site
before start up
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HYDRAULIC POWER UNITS
4 Inquiry data questionnaireQuestionnaire for technical data
Type of hydraulic application? HP-Bypass station
.................. - station
Quantity of hydraulic cylinders? ................ valves /
cylinders
Configuration of the valve/cylinder
groups?..........................................................................................................................................................................................................................................................................................................................................................................................
Function of the valves? (Safety
function)............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Technical data:
valve force [N] spring force [N] stroke stroke time [s]open
closed open closed [mm] c co cc
1
2
3
4
5
6
7
8
Blocking device for main valves required? yes no
Motor pump unit? single double 100% flow rate
Accumulator capacity for emergency? yes no quantity of stroke:
.............
Electr. cabinet / PLC? yes no Terminal box
Erection service required? ja no location:
.........................................
